<template>
  <div>

    <div>
      <el-input style="width: 200px;" placeholder="请输入名称" v-model="name" suffix-icon="el-icon-search"></el-input>
      <el-input style="width: 200px;margin:10px 5px" v-model="description" placeholder="请输入描述"
                suffix-icon="el-icon-notebook-2"></el-input>
      <el-button class="ml-5" type="primary" @click="search">搜索</el-button>
      <el-button @click="reset" type="primary" plain>重置</el-button>
    </div>
    <div style="margin:10px 0">
      <el-button type="primary" @click="handleAdd">新增
        <i class="el-icon-circle-plus-outline"/>
      </el-button>
      <el-popconfirm title="确定批量删除吗？" @confirm="delBatch"
                     class="ml-5">
        <el-button type="danger" slot="reference">批量删除
          <i class="el-icon-remove-outline"/>
        </el-button>
      </el-popconfirm>
      <!--    <el-button type="primary" class="ml-5">导入-->
      <!--      <i class="el-icon-bottom" />-->
      <!--    </el-button>-->
      <!--    <el-button type="primary">导出-->
      <!--      <i class="el-icon-top" />-->
      <!--    </el-button>-->
    </div>
    <el-table :data="tableData" border stripe :header-cell-style="tableHeaderColor"
              @selection-change="handleSelectionChange">
      <el-table-column
          type="selection"
          width="55">
      </el-table-column>
      <el-table-column prop="id" label="ID" width="150">
      </el-table-column>
      <el-table-column prop="name" label="名称">
      </el-table-column>
      <el-table-column prop="flag" label="唯一标识">
      </el-table-column>
      <el-table-column prop="description" label="描述">
      </el-table-column>
      <el-table-column label="操作" width="280" align="center">
        <template slot-scope="scope">
          <el-button type="warning" plain @click="selectMenu(scope.row)">
            分配菜单 <i class="el-icon-menu"></i>
          </el-button>
          <el-button type="warning" @click="handleEdit(scope.row)">编辑 <i class="el-icon-edit"></i></el-button>
          <el-popconfirm title="确定删除吗？" @confirm="del(scope.row.id)"
                         class="ml-5">
            <el-button type="danger" slot="reference">删除 <i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>

        </template>
      </el-table-column>
    </el-table>
    <div style="padding:10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <el-dialog title="角色信息" :visible.sync="dialogFormVisible" width="30%">
      <el-form label-width="80px" size="small">
        <el-form-item label="名称">
          <el-input v-model="form.name" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="唯一标识">
          <el-input v-model="form.flag" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="描述">
          <el-input v-model="form.description" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancel">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>
    <el-dialog title="菜单分配" :visible.sync="menuDialogVisible" width="30%">
      <el-tree
          :props="props"
          :data="menuData"
          show-checkbox
          node-key="id"
          ref="tree"
          :default-expanded-keys="expends"
          :default-checked-keys="checks">
        <span class="custom-tree-node" slot-scope="{node,data}">
          <span><i :class="data.icon"/> {{ data.name }}</span>
        </span>
      </el-tree>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancel">取 消</el-button>
        <el-button type="primary" @click="saveRoleMenu">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {store} from "@/store";
import router, {resetRouter} from "@/router";

export default {
  name: "User",
  data() {
    return {
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      name: "",
      description: "",
      form: {},
      dialogFormVisible: false,
      menuDialogVisible: false,
      multipleSelection: [],
      menuData: [],
      props: {
        label: 'name'
      },
      expends: [],
      checks: [],
      roleId: 0, //所需选角色id
      roleFlag:''  //所选角色菜单
    }
  },
  created() {
    this.load()
  },
  methods: {
    handleAdd() {
      this.dialogFormVisible = true
      this.form = {}
    },
    handleEdit(row) {
      this.form = row
      this.dialogFormVisible = true
    },
    reset() {
      this.name = ""
      this.description = ""
      this.pageNum = 1
      this.load()
    },
    handleSelectionChange(val) {
      console.log(val)
      this.multipleSelection = val
    },
    delBatch() {
      let ids = this.multipleSelection.map(v => v.id)  //[ {},{},{}] => [1,2,3]
      this.request.post("/role/del/batch", ids).then(res => {
        if (res.code === '200') {
          this.$message.success("批量删除成功")
          this.load()
        } else {
          this.$message.error("批量删除失败")
        }
      })
    },
    load() {
      this.request.get("/role/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          username: this.username,
          email: this.email,
          address: this.address
        }
      }).then(res => {
        console.log(res)
        this.tableData = res.data.records
        this.total = res.data.total
      })


    },
    search() {
      this.request.get("/role/page", {
        params: {
          pageNum: 1,
          pageSize: this.pageSize,
          name: this.name,
          description: this.description,
        }
      }).then(res => {
        console.log(res)
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    del(id) {
      this.request.delete("/role/" + id).then(res => {
        if (res.code === '200') {
          this.$message.success("删除成功")
          this.load()
        } else {
          this.$message.error("删除失败")
        }
      })
    },
    save() { //新增或修改
      this.request.post("/role", this.form).then(res => {
        if (res.code === '200') {
          this.$message.success("保存成功")
          this.dialogFormVisible = false
          this.load()
        } else {
          this.$message.error("保存失败")
          this.load()
        }
      })

    },
    saveRoleMenu() {
      console.log(this.$refs.tree.getCheckedKeys());

      this.request.post("/role/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then(res => {
        if (res.code === '200') {
          this.$message.success("绑定成功")
          this.menuDialogVisible = false

          //操做管理员 重新登录
          if(this.roleFlag==='ROLE_ADMIN'){
          //   store.logout()
            this.$message.success("权限已更改，请重新登录")
            localStorage.removeItem("user")
            localStorage.removeItem("menus")
            router.push("/login")
            resetRouter()
          }
        } else {
          this.$message.error(res.msg)
        }
      })
    },
    cancel() {
      this.menuDialogVisible = false
      this.load()
    },

    tableHeaderColor({row, column, rowIndex, columnIndex}) {
      return 'background-color:lightblue;color:#fff;font-size:15px;'
    },
    handleSizeChange(pageSize) {
      console.log(pageSize)
      this.pageSize = pageSize;
      this.load()
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum)
      this.pageNum = pageNum;
      this.load()
    },
    async getMenu(){
      //请求角色对应的菜单
      return (await this.request.get("/role/roleMenu/" + this.roleId)).data
    },
    async selectMenu(role) { //为角色分配菜单

      this.roleId = role.id
      this.roleFlag=role.flag
      //请求菜单数据
      this.request.get("/menu").then(res => {
        this.menuData = res.data;//获取所有的菜单
        //把后台返回的菜单数据处理成 id 数组
        this.expends = this.menuData.map(v => v.id)//设置所有的菜单都展开
      })

      //请求角色对应的菜单

      this.checks =await this.getMenu();
      console.log(this.checks)
      this.menuDialogVisible = true
    },



  }
}
</script>

<style scoped>

</style>